*{
    margin: 0;
    padding: 0;
}
.zong{
    width: 880px;
    height: 750px;
}
.header{
    margin-top: 4px;
    width: 100%;
    height: 3%;
}
.main{
    width: 100%;
    height: 93%;
}
table{
    border-spacing: 200px 50px;
}
#h{
    margin-left: 35%;
    width: 50px;
    height: 30px;
}